by Dave’s Repair Service
©2006 All Rights Reserved
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1) A Simple Test for
240V to Your Dryer - Without a Meter or Test Bulb
2) That Awful Squeal Coming from Your Whirlpool
or Kenmore Dryer (Whirlpool goofed!)
1) If you've been
getting this newsletter for a while you know I always 'preach' testing for the
presence of 240 volts (approx) to your 'no heat' dryer before you take it apart.
Saves a ton of time, as most servicers, including this one, have learned the
The frustrating side of that recommendation for
me is that most folks don't have a VOM (volt-ohm-milliammeter) lying
around the house to test this.
A week or two ago I had one of those little
'Eureka' moments (there aren't nearly as many as there used to be, I
admit!), and I think you'll find this idea useful.
The test involves using a simple table lamp or
other 120V fixture with a two-prong (ungrounded) plug on the end of its
cord. And it works best with one of the lighter plugs with brass blades
that are 'folded over', looking like two pieces sandwiched
To test for 240V at your dryer's terminal block,
where the cord connects, just bend the blades of this plug apart and
touch them to the outer terminals on the block, one pair at a time, like
Note: Test 120V only across terminals as
shown - NOT across 2 outside terminals!
Your terminal block may look different than this one, but there are 3
terminals on the back of your electric dryer that the cord, or 'pigtail,
connect to. The outer two are 'hots', or 'legs' (Get your minds back on
dryers here, guys <g>), and the one in the middle is the
When the incoming 240V supply is as
it should be, you'll read 120V on these outer two pairs when measuring to
the center, neutral post. So if your table lamp lights normally when the
plug's touched to the right and center posts, and again when touched to
the left and center posts, you have 120V coming in on both 'legs'.
sure you test 120V only across outside terminal pairs as shown -
and NOT across the 2 outside terminals (the brass ones in the picture). If
you should do that, the 240V will blow your 120V lamp or whatever you're
using for this test - and very possibly cause you bodily harm! Please be
careful. The 240 volts present across these outside two terminals can kill
you quickly! You have read my disclaimer,
right? I certainly don't want to lose you! <grin>
If 120V is present on both legs, it's
a very, very good bet that you have the 240V you need into the dryer (or
range, or any other 240V single phase appliance). Simple, huh?
thought we'd seen the last of these a while back, but I'm still running
into them and answering questions about them, so thought I'd clue you
for 2 or 3 years, Whirlpool tried using a new belt idler in many of their
29 inch (wide) dryers. After using the same very reliable roller type
idler for many decades, I'm not sure why the change was made, but suspect
a 'bean-counter' convinced someone that the change would save a bunch of
to make a long story short (not like me, I know! <g>), it didn't
work out. Loud squeals, high pitched whines - some of which my aging ears
can't even hear - and intermittent crazy noises of all sorts have been
caused by the belt sliding over that little piece of Teflon™.
goodness the company has gone back to what worked for so long, the 691366
idler pulley assembly. That has solved the problem. Unless you happen to
own one of the dryers in question.
versions look like this:
yours uses a slider like the one on the left, you'll want to replace it
with the roller type idler shown here on the right, part # 691366.
If it 'squeals' too long it also does the belt no favors, so you might
want to pick one of those up too. Most of these machines use the same one,
part # 341241, which is inexpensive and easy to replace.
And if you're not sure about the
correct belt for yours, drop me an email with your model number and I'll
be happy to look it up for you. You'll find your model number inside the
Thanks again for allowing me into your
inbox - I don't take the invitation lightly! As always, if you
have any topics you’d like to see discussed here or covered in an online article, let
me know and I’ll do my best to oblige. And don't forget those
testimonials! Many thanks if
you've already sent yours in! I'm posting them just as fast as I can!
May God richly bless you and yours,
Dave’s Repair Service
New Albany, PA
Tomorrow a Mystery
Today is a Gift - That's Why We Call it The Present.'
Copyright 2006 www.DavesRepair.com
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